FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2897375633> ?p ?o ?g. }

• W2897375633 endingPage "415" @default.
• W2897375633 startingPage "389" @default.
• W2897375633 abstract "A number of trace metals play essential roles in marine ecosystem structure and biological productivity. Until recently, it has been argued that phytoplankton access primarily dissolved iron, while particulate iron was considered a refractory material with little use biologically and limited interaction with the dissolved pool. In order to assess the transfer mechanisms between sediment-sourced particulate trace metals and the dissolved pool, we conducted a 14-month incubation that reacted resuspended sediments with natural seawater, both originating from the Kerguelen area (KEOPS cruises; Southern Ocean), in the dark, and at concentrations replicating natural conditions. Three types of sediments were investigated (named BioSi, BioSi + Ca, and Basalt), mostly composed of (i) biogenic silica (bSiO2), (ii) bSiO2 and calcite, and (iii) basaltic fragments, respectively. The release of dissolved silicon (dSi), iron (dFe) and manganese (dMn) was monitored regularly throughout the incubation, as well as living bacteria density and Fe organic ligands. Depending on the origin and composition of the sediment, unique dFe and dMn fluxes were observed, including a strong decoupling between dFe and dMn. The basaltic sediment released up to 1.09 ± 0.04 nmol L−1 of dFe and 0.28 ± 0.09 nmol L−1 of dMn, while the biogenic sediments released a higher 3.91 ± 0.04 nmol L−1 and 8.03 ± 0.42 nmol L−1 of dFe and dMn, respectively. Several factors influencing the release and removal of dFe and dMn were discernable at the temporal sampling resolution of the incubation, including the structural composition of the sediment, bacterial abundance, and the formation of manganese oxides. The regular sampling over short timescales and the extended sampling over one year proved to be critical to constrain the processes and exchanges that govern the contribution of the particulate to the dissolved pools. Overall, this incubation provides a strong basis for reassessing the role of resuspended sedimentary particles in the marine biogeochemical cycles of Fe and Mn. Indeed, we show that biogenic silica, calcite-rich and basaltic particles can contribute substantial dissolved Fe and Mn to the overlying water column. In the future, the global extent of this previously overlooked external metal source should be quantified through further process studies and biogeochemical models. This article is part of a special issue entitled: “Cycles of trace elements and isotopes in the ocean – GEOTRACES and beyond” - edited by Tim M. Conway, Tristan Horner, Yves Plancherel, and Aridane G. González." @default.
• W2897375633 created "2018-10-26" @default.
• W2897375633 creator A5006526471 @default.
• W2897375633 creator A5013301921 @default.
• W2897375633 creator A5015396451 @default.
• W2897375633 creator A5017956724 @default.
• W2897375633 creator A5026866504 @default.
• W2897375633 creator A5036217068 @default.
• W2897375633 creator A5049966295 @default.
• W2897375633 creator A5052384010 @default.
• W2897375633 creator A5060975532 @default.
• W2897375633 creator A5077969030 @default.
• W2897375633 creator A5080625906 @default.
• W2897375633 creator A5081423319 @default.
• W2897375633 creator A5086816896 @default.
• W2897375633 date "2019-04-01" @default.
• W2897375633 modified "2023-10-12" @default.
• W2897375633 title "Contribution of resuspended sedimentary particles to dissolved iron and manganese in the ocean: An experimental study" @default.
• W2897375633 cites W1574902380 @default.
• W2897375633 cites W1582304065 @default.
• W2897375633 cites W1807406143 @default.
• W2897375633 cites W1815030837 @default.
• W2897375633 cites W186403288 @default.
• W2897375633 cites W1904857018 @default.
• W2897375633 cites W1926307772 @default.
• W2897375633 cites W1947421907 @default.
• W2897375633 cites W1967426052 @default.
• W2897375633 cites W1967929691 @default.
• W2897375633 cites W1967990870 @default.
• W2897375633 cites W1972005284 @default.
• W2897375633 cites W1972837245 @default.
• W2897375633 cites W1973645798 @default.
• W2897375633 cites W1976365567 @default.
• W2897375633 cites W1976418545 @default.
• W2897375633 cites W1977055058 @default.
• W2897375633 cites W1980099205 @default.
• W2897375633 cites W1980382113 @default.
• W2897375633 cites W1981174478 @default.
• W2897375633 cites W1985520778 @default.
• W2897375633 cites W1986074039 @default.
• W2897375633 cites W1986944228 @default.
• W2897375633 cites W1989698240 @default.
• W2897375633 cites W1990109533 @default.
• W2897375633 cites W1990737863 @default.
• W2897375633 cites W1991635406 @default.
• W2897375633 cites W1996530735 @default.
• W2897375633 cites W1997499786 @default.
• W2897375633 cites W1998426131 @default.
• W2897375633 cites W2001213305 @default.
• W2897375633 cites W2003124271 @default.
• W2897375633 cites W2005959965 @default.
• W2897375633 cites W2007075308 @default.
• W2897375633 cites W2007443159 @default.
• W2897375633 cites W2007446886 @default.
• W2897375633 cites W2008265007 @default.
• W2897375633 cites W2008318108 @default.
• W2897375633 cites W2019651807 @default.
• W2897375633 cites W2020704651 @default.
• W2897375633 cites W2025700565 @default.
• W2897375633 cites W2026391737 @default.
• W2897375633 cites W2029401934 @default.
• W2897375633 cites W2032800210 @default.
• W2897375633 cites W2034402808 @default.
• W2897375633 cites W2035265108 @default.
• W2897375633 cites W2036197570 @default.
• W2897375633 cites W2037437273 @default.
• W2897375633 cites W2038643777 @default.
• W2897375633 cites W2039173588 @default.
• W2897375633 cites W2040373821 @default.
• W2897375633 cites W2040995084 @default.
• W2897375633 cites W2042626509 @default.
• W2897375633 cites W2042855553 @default.
• W2897375633 cites W2048433752 @default.
• W2897375633 cites W2049089236 @default.
• W2897375633 cites W2052727955 @default.
• W2897375633 cites W2053539653 @default.
• W2897375633 cites W2055731611 @default.
• W2897375633 cites W2056122984 @default.
• W2897375633 cites W2059040640 @default.
• W2897375633 cites W2060509600 @default.
• W2897375633 cites W2063671027 @default.
• W2897375633 cites W206380256 @default.
• W2897375633 cites W2066216136 @default.
• W2897375633 cites W2066598151 @default.
• W2897375633 cites W2067376557 @default.
• W2897375633 cites W2067854105 @default.
• W2897375633 cites W2068254300 @default.
• W2897375633 cites W2069057608 @default.
• W2897375633 cites W2069709195 @default.
• W2897375633 cites W2073433189 @default.
• W2897375633 cites W2082829486 @default.
• W2897375633 cites W2084240724 @default.
• W2897375633 cites W2084376607 @default.
• W2897375633 cites W2084393793 @default.
• W2897375633 cites W2084429208 @default.
• W2897375633 cites W2085125827 @default.
• W2897375633 cites W2086635295 @default.
• W2897375633 cites W2087662765 @default.

• next